This is my first time asking a question but I’m a serious bind. DAE ever get really anxious over tipping?

I’m moving tomorrow, and I have a team of three movers coming to help move from one apartment to another in the same city (about 4 miles away) I think it’ll be about a 6-8 hour job. I have a contract with the company for the entire move, it is not per hour based. This is the US, so of course it’s expected to tip the workers separately. 

I have cash on hand to tip, and I was planning to tip ~$30 per person, or just $100 total.

Is it okay to give a $100 bill to the foreman or leader of the team? I have some twenties and some fives but there’s no way I can tip equally (2 twenties, 3 fives, and handful of $100 bills). 

I’m really really worried about this, I’ve never used movers before and I wouldn’t want to upset them over messing up the tip. Or should I find an atm and suck up paying the extra fees (my bank doesn’t have a branch still open nearby tonight). My anxiety is through the roof over this move, and now on top of it I’m freaking out over messing up the tip. 

Thanks in advance, 
An Anxious Mover