Possible Boosting Exploit

I totaled my boost vehicle near my drop-off point at vineyard and stole a different car. I drove into the vineyard parking lot to steal a better car to get back to the city faster and somehow parked close enough to the drop off to trigger the message you typically get when you complete the boost. When I got out of the car and went to steal another one I ended up getting the boost reward. I did not try to replicate it, may just be a one-off.