A violation of this chapter is hereby declared to be a violation, punishable by a penalty not exceeding $350 or imprisonment for a period not to exceed six months, or both, for conviction of a first offense; for conviction of a second offense, both of which were committed within a period of five years, punishable by a penalty not less than $350 nor more than $700, or imprisonment for a period not to exceed six months, or both; and, upon conviction for a third or subsequent offense, all of which were committed within a period of five years, punishable by a penalty not less than $700 nor more than $1,000, or imprisonment for a period not to exceed six months, or both. Each week's continued violation shall constitute a separate, distinct and additional violation.