This already exists. High school officials (without an on-field play clock) wear one of these:
It clips on your belt. Click the filled-in circle for 40 seconds or the empty circle for 25. It vibrates at 10 seconds and then a steady vibration for the last 5 seconds. When it stops vibrating, time is expired. It would not be hard to connect one of these to the on-field play clock for the same effect.
I can't imagine we could get anything more than a 6th round pick, but the way this team is just so devoid of talent, I get it. Anything worth value now that is not going to be worth as much value 2-3 years down the road should be for sale.
Not to mention that he was held in check fairly well until our rookie corner who was forced into starting by injury was forced out with injury. So yes, well done Aaron on picking apart the 3rd string and beyond of possibly the worst secondary in the league.