As long as they're involved in fundraising activity, the events that they go to, there would not be a penalty.

NPR: Primary Jostling Complicates Campaign Cash Rules

Persons ultimately not covered by the Rule are prevented from making meaningful contributions to or engaging in fundraising or other activity for candidates ultimately not covered by the Rule.

FORBES: Are Investment Firm Workers' Political Speech Rights At Risk?

But our business became a victim of the bad publicity caused by face-to-face street fundraising and the public's reaction to what was then (and still is now) a pretty unregulated activity.

BBC: Street fundraisers: Your stories