Insult Or Flattered

The other night while driving home from the store I had a car that started trying to act erratically in the lane left of me.  I noticed them in my left rear mirror.  I don't know how to explain that other than you just know when something is going on when a vehicle starts acting a little strange close to you on the road.
Now if you've looked at my pic you can see I have a wild main of red hair that hides my face for the most part from the side if something isn't holding it back or the wind is blowing it out of my face.
Finally I stop at a red light and the strange behaving vehicle pulls up beside me and stops.
There were two very young men inside that car and they were evidently trying to get my attention I realize.  Thinking that maybe they were trying to tell me that something was wrong with the oversize pickup I was in, and it is big, I finally turned to see what they might want.
You can imagine my surprise when I became aware that they were just trying to get my attention because of what they thought I was.  You know younger, cuter , etc.
The look of sudden mortification that came over their faces was a little hurtful to my pride but it happens, I'm not a spring chicken anymore.  The two not too bright young men must have decided that for an old lady I wasn't too bad however and then smiled and processed to give me a rather obscene jester.  Not the middle finger I might add.  My only response was to roll my eyes and turned my head away.  I didn't know whether to be insulted or flattered by the jester.
They blew their horn at me as they pulled out in front after the light changed.  My husband who was sitting in the seat next to me, the two whipper snappers couldn't see him from where they had been sitting, asked what was going on.  I simply said nothing and continued on my way.